Aug 11, 2022
I love doing intertidal zone surveys, invertebrates have my entire heart
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I love doing intertidal zone surveys, invertebrates have my entire heart
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Journey to the Microcosmos: Tardigrades: Chubby, Misunderstood, & Not Immortal
Images originally captured by Jam’s Germs
Thank you @airyearthgirl for inspiring me to gif these amazing lines
Today at the university we made organoids from mouse tissue.
I prepared a mammal for the first time.
The photos show the mouse organs before being fragmented.
You can see intestine, pancreas, heart and lung.
the feeling of shaving for the first time as the weather gets warm that’s me getting ready to come out of hibernation (hoodies & sweats) and explore the world (slutty outfits). like. wow it’s all coming together the human body is basically the same as a bear’s but the hair covering us is just the dirt that covers the bear in winter. I understand biology so well failing it 3 times means litrally nothing
'you and the cockroach’ by hobo johnson has the same energy of ‘history of the entire world, i guess’ by bill wurtz.
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fig. 1: menippe mercenaria, the stone crab
Penguin Sight
“In our eyes, most of the focusing work is done by the cornea at the front of the eye. The lens only contributes about ten percent, and is just there to fine tune the focus for sharp images at different distances.
When we are underwater though, the difference in refractive index between the surrounding water and the tissue of the cornea is much lower, so a given curvature doesn’t bend light as much. Our eyes are optimized for air and our lenses can’t adjust enough to make up the difference, so our vision is blurry underwater unless we wear goggles.
Fish can see clearly because their corneas are more spherical (a ‘fish-eye lens’) and so can focus more strongly, but this makes fish short-sighted in air. Penguins need to be able to see clearly on both land and underwater, so neither cornea shape will do. Instead they actually have corneas that are much flatter, even than ours. This takes almost all the focusing power away from the cornea and nearly all the work is done by the lens.
To form a sharp image, the penguin’s eye must be able to change the shape of the lens a lot more than the lenses in either fish or human eyes do.Penguins’ lenses are softer and the muscles can squeeze them up against the opening of the pupil. This makes them bulge outwards in very rounded shape. Diving birds use this technique as well but penguins are the masters. “ (x)
Sneaking in some reading time while waiting for my gel to run